IPortableDevice types being generated with in keywords

Actual behavior

Some PortableDevice related COM interfaces are generated with inaccurate method signatures. Everything still works, but I don't think this is correctly generated. For example:

internal interface IPortableDevicePropVariantCollection
{
    void GetCount(in uint pcElems);
    ...
    void GetAt(uint dwIndex, in winmdroot.System.Com.StructuredStorage.PROPVARIANT pValue);
}

I've found the same behavior on IPortableDevicePropVariantCollection, IPortableDeviceKeyCollection, IPortableDeviceValues, and IPortableDeviceValuesCollection.

Expected behavior

For all of those methods, I would expect the data to be returned to me to use an out parameter rather than an in parameter.

Repro steps

1. NativeMethods.txt content:

IPortableDevice

Context

• CsWin32 version: 0.3.269-beta
• Target Framework: net9.0

Reproduce the issue using a NativeMethods.txt file containing IPortableDevice and inspect the generated declarations for IPortableDevicePropVariantCollection, IPortableDeviceKeyCollection, IPortableDeviceValues, and IPortableDeviceValuesCollection. Trace how their method signatures are generated, then verify that returned data uses out parameters rather than in parameters.